183674-17-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183674-17-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,6,7 and 4 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 183674-17:
(8*1)+(7*8)+(6*3)+(5*6)+(4*7)+(3*4)+(2*1)+(1*7)=161
161 % 10 = 1
So 183674-17-1 is a valid CAS Registry Number.